WO2019034368A1 - Glass fiber reinforced pbt/pet blend materials - Google Patents
Glass fiber reinforced pbt/pet blend materials Download PDFInfo
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- WO2019034368A1 WO2019034368A1 PCT/EP2018/069745 EP2018069745W WO2019034368A1 WO 2019034368 A1 WO2019034368 A1 WO 2019034368A1 EP 2018069745 W EP2018069745 W EP 2018069745W WO 2019034368 A1 WO2019034368 A1 WO 2019034368A1
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- pet
- ratio
- blend material
- pbt
- material according
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Definitions
- the present invention relates to materials with high-gloss, high chemical resistance and high temperature resistance, developed to be used in visual parts.
- polybutylene terephthalate/polyethylene terephthalate (PBT/PET) blend materials with high gloss, high chemical resistance and high heat resistance are used in such visual parts.
- PBT/PET polybutylene terephthalate/polyethylene terephthalate
- glass fiber reinforcement in varying ratios is used in such blend materials. Glass fibers may deteriorate the surface appearance and reduce the gloss due to its fibrous structure. Methods are used in order to enhance gloss in such PBT/PET blend materials, such as forming a second glossy layer on the surface by using various chemical additives, or forming separate polymeric blend materials.
- the aim of the present invention is to produce household appliances having visual parts comprising polybutylene terephthalate/polyethylene terephthalate (PBT/BET) blend materials with high-gloss, high chemical resistance and high temperature resistance.
- PBT/BET polybutylene terephthalate/polyethylene terephthalate
- the blend material realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims comprises polybutylene terephthalate (PBT), polyethylene terephthalate (PET), glass fibers, glass balls (solid glass sphere), lubricant and antioxidant.
- PBT polybutylene terephthalate
- PET polyethylene terephthalate
- glass fibers glass fibers
- glass balls solid glass sphere
- lubricant and antioxidant comprises polybutylene terephthalate (PBT), polyethylene terephthalate (PET), glass fibers, glass balls (solid glass sphere), lubricant and antioxidant.
- This blend material is used in visual parts of households appliances in which cooking process is performed such as oven or Vietnamese coffee maker.
- the PBT/PET blend material comprises polybutylene terephthalate (PBT), polyethylene terephthalate (PET), glass fibers, lubricant and antioxidant.
- the PBT/PET blend material of the invention comprises polybutylene terephthalate (PBT), polyethylene terephthalate (PET), glass fibers, glass balls (solid glass sphere), lubricant and antioxidant.
- glass fibers mechanically enhances the PBT/PET blend material.
- using solely glass fibers causes the surface to dull and lose gloss.
- Glass balls are used in the blend material of the invention as a solution to this problem. Addition of glass balls improves the gloss. Glass balls (solid glass sphere) also bring a cost advantage due to being very low cost, as well as eliminate the ruggedness generated by the rugged structure of the glass fibers used in the blend material, by filling in between.
- the PBT/PET blend material comprises glass fibers in a ratio of 3-35%.
- the diameter of a glass fiber is in the range of 8-15 ⁇ m.
- Blend material according to claim 1 characterized by comprising surface modification compatible with polyester.
- the PBT/PET blend material comprises polybutylene terephthalate (PBT) in a ratio of 15-70%.
- the PBT/PET ratio is considerably critical for processability of said blend. Optimum conditions are met by using PBT in a ratio of 15-70%.
- the viscosity of the polybutylene terephthalate (PBT) is in the range of 0.85-0.96 dL/G.
- the viscosity of the PBT/PET blend is a critical parameter for achieving the desired appearance and providing processability.
- the aim in this application is to obtain a glossy surface. In order to make the part's surface glossy, it is attempted during injection to enable the PET which is the polymer enhancing gloss to rise over the surface of the PBT polymer. Said viscosity values and said ratios are particularly opted for providing gloss and also being able to blend the PBT/PET polymers.
- the PBT/PET blend material comprises polyethylene terephthalate (PET) in a ratio of 15-70%.
- PET gives gloss to the plastic and enhances thermal resistance.
- the amount of PET not being selected in an appropriate ratio causes the PBT/PET blend to become not processable in the extruder and in injection, making it difficult to produce parts.
- the viscosity of polyethylene terephthalate is in the range of 0.710 ⁇ 0.010 dL/G.
- the viscosity of the PBT/PET blend is a critical parameter for achieving the desired visuality and providing processability.
- the aim in this application is obtaining a glossy surface. In order to make the part's surface glossy, it is attempted during injection to enable the PET which is the polymer enhancing gloss to rise over the surface of the PBT polymer. Said viscosity values and said ratios are particularly opted for providing gloss and also being able to blend the PBT/PET polymers.
- the PBT/PET blend material comprises glass balls in a ratio of 3-35%.
- Blend material according to claim 9 characterized by comprising glass balls with a diameter of 3-40 ⁇ m.
- the purpose of using glass balls here is eliminating the negative structure formed by the glass fibers by filling in between, and forming a smooth surface on the part's surface thanks to their spherical shape.
- the selected glass ball dimension is the optimum size deducted for the selected size of the glass fibers. Said diameter being larger than required prevents the balls from entering in between the glass fibers, whereas the diameter being smaller than required renders the glass balls useless.
- Blend material according to claim 1 characterized by comprising lubricant in a ratio of 0.2-4%.
- the PBT/PET blend material comprises antioxidant in a ratio of 0.05-3%.
- the antioxidant is synergistic phenol/phosphite mixture with high phosphite content.
- the antioxidant consisting of synergistic phenol/phosphite mixture with high phosphite content, prevents deterioration and color change under high temperatures.
- Blend material according to claim 1 characterized by having a gloss of 104 GU at 60°C.
- the production method of PBT/PET blend material comprises the process steps of, - obtaining polybutylene terephthalate from PET copolymers, - obtaining polyethylene terephthalate (PET) by polymerization of dimethyl terephthalate (DMT) and 1,4-butanediol (BDO), and - processing the obtained polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) with glass fibers, glass balls, lubricant and antioxidant in a twin screw extruder.
- DMT dimethyl terephthalate
- BDO 1,4-butanediol
- the production method of PBT/PET blend material comprises the process steps of, - obtaining polybutylene terephthalate from PET copolymers, - obtaining polyethylene terephthalate (PET) by polymerization of dimethyl terephthalate (DMT) and 1,4-butanediol (BDO), and - processing polybutylene terephthalate (PBT) in a ratio of 15-70% and polyethylene terephthalate (PET) in a ratio of 15-70% with glass fibers in a ratio of 3-35%, glass balls in a ratio of 3-35%, lubricant in a ratio of 0.2-4% and antioxidant in a ratio of 0.05-3% in a twin screw extruder.
- DMT dimethyl terephthalate
- BDO 1,4-butanediol
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The present invention relates to plastic blend materials developed to be used in visual parts of household appliances. The blend material comprises glass fiber reinforced polybutylene terephthalate (PBT), polyethylene terephthalate (PET), lubricant, antioxidant and glass balls.
Description
The present invention relates to materials with high-gloss, high chemical resistance and high temperature resistance, developed to be used in visual parts.
In the state of the art, as a result of the visual parts of the household appliances with which cooking process is performed such as oven, Turkish coffee maker, being subject to heat, polybutylene terephthalate/polyethylene terephthalate (PBT/PET) blend materials with high gloss, high chemical resistance and high heat resistance are used in such visual parts. In order to enhance rigidity and strength, glass fiber reinforcement in varying ratios is used in such blend materials. Glass fibers may deteriorate the surface appearance and reduce the gloss due to its fibrous structure. Methods are used in order to enhance gloss in such PBT/PET blend materials, such as forming a second glossy layer on the surface by using various chemical additives, or forming separate polymeric blend materials.
State of the art Chinese patent application no. CN104693695 (A) discloses a low density polybutylene terephthalate material reducing sound and vibration, comprising polybutylene terephthalate (PBT), glass fibers, hollow glass spheres, lubricant, antioxidant and binder.
State of the art Chinese patent no. CN101580632 (B) discloses a glass fiber reinforced polybutylene terephthalate/polymethyl methacrylate (PBT/PMMA) mixture with high gloss and performance.
The aim of the present invention is to produce household appliances having visual parts comprising polybutylene terephthalate/polyethylene terephthalate (PBT/BET) blend materials with high-gloss, high chemical resistance and high temperature resistance.
The blend material realized to achieve the aim of the present invention and disclosed in the first claim and the dependent claims, comprises polybutylene terephthalate (PBT), polyethylene terephthalate (PET), glass fibers, glass balls (solid glass sphere), lubricant and antioxidant.
This blend material is used in visual parts of households appliances in which cooking process is performed such as oven or Turkish coffee maker.
The PBT/PET blend material comprises polybutylene terephthalate (PBT), polyethylene terephthalate (PET), glass fibers, lubricant and antioxidant.
The PBT/PET blend material of the invention comprises polybutylene terephthalate (PBT), polyethylene terephthalate (PET), glass fibers, glass balls (solid glass sphere), lubricant and antioxidant.
Using glass fibers mechanically enhances the PBT/PET blend material. However, using solely glass fibers causes the surface to dull and lose gloss. Glass balls are used in the blend material of the invention as a solution to this problem. Addition of glass balls improves the gloss. Glass balls (solid glass sphere) also bring a cost advantage due to being very low cost, as well as eliminate the ruggedness generated by the rugged structure of the glass fibers used in the blend material, by filling in between.
In the preferred embodiment of the invention, the PBT/PET blend material comprises glass fibers in a ratio of 3-35%.
Using glass fibers in a ratio of 3-35% is the optimum range for the invention to work.
In the preferred embodiment of the invention, the diameter of a glass fiber is in the range of 8-15 µm.
Opting for a large size for the glass fibers increases the rugged structure on the surface, whereas opting for a very small size decreases processability. The stated range is the optimum size calculated for this application.
Blend material according to claim 1, characterized by comprising surface modification compatible with polyester.
In the preferred embodiment of the invention, the PBT/PET blend material comprises polybutylene terephthalate (PBT) in a ratio of 15-70%.
The PBT/PET ratio is considerably critical for processability of said blend. Optimum conditions are met by using PBT in a ratio of 15-70%.
In an embodiment of the invention, the viscosity of the polybutylene terephthalate (PBT) is in the range of 0.85-0.96 dL/G.
The viscosity of the PBT/PET blend is a critical parameter for achieving the desired appearance and providing processability. The aim in this application is to obtain a glossy surface. In order to make the part's surface glossy, it is attempted during injection to enable the PET which is the polymer enhancing gloss to rise over the surface of the PBT polymer. Said viscosity values and said ratios are particularly opted for providing gloss and also being able to blend the PBT/PET polymers.
In the preferred embodiment of the invention, the PBT/PET blend material comprises polyethylene terephthalate (PET) in a ratio of 15-70%.
PET gives gloss to the plastic and enhances thermal resistance. However, the amount of PET not being selected in an appropriate ratio causes the PBT/PET blend to become not processable in the extruder and in injection, making it difficult to produce parts.
In the preferred embodiment of the invention, the viscosity of polyethylene terephthalate (PET) is in the range of 0.710 ± 0.010 dL/G.
The viscosity of the PBT/PET blend is a critical parameter for achieving the desired visuality and providing processability. The aim in this application is obtaining a glossy surface. In order to make the part's surface glossy, it is attempted during injection to enable the PET which is the polymer enhancing gloss to rise over the surface of the PBT polymer. Said viscosity values and said ratios are particularly opted for providing gloss and also being able to blend the PBT/PET polymers.
In the preferred embodiment of the invention, the PBT/PET blend material comprises glass balls in a ratio of 3-35%.
Using glass balls in a ratio of 3-35% is the optimum range for the invention to work.
Blend material according to claim 9, characterized by comprising glass balls with a diameter of 3-40 µm.
The purpose of using glass balls here is eliminating the negative structure formed by the glass fibers by filling in between, and forming a smooth surface on the part's surface thanks to their spherical shape. The selected glass ball dimension is the optimum size deducted for the selected size of the glass fibers. Said diameter being larger than required prevents the balls from entering in between the glass fibers, whereas the diameter being smaller than required renders the glass balls useless.
Blend material according to claim 1, characterized by comprising lubricant in a ratio of 0.2-4%.
In the preferred embodiment of the invention, the PBT/PET blend material comprises antioxidant in a ratio of 0.05-3%.
Using antioxidant in a ratio of 0.05-3% is the optimum range for the invention to work.
In an embodiment of the invention, the antioxidant is synergistic phenol/phosphite mixture with high phosphite content.
The antioxidant consisting of synergistic phenol/phosphite mixture with high phosphite content, prevents deterioration and color change under high temperatures.
Blend material according to claim 1, characterized by having a gloss of 104 GU at 60°C.
In an embodiment of the invention, the production method of PBT/PET blend material comprises the process steps of,
- obtaining polybutylene terephthalate from PET copolymers,
- obtaining polyethylene terephthalate (PET) by polymerization of dimethyl terephthalate (DMT) and 1,4-butanediol (BDO), and
- processing the obtained polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) with glass fibers, glass balls, lubricant and antioxidant in a twin screw extruder.
- obtaining polybutylene terephthalate from PET copolymers,
- obtaining polyethylene terephthalate (PET) by polymerization of dimethyl terephthalate (DMT) and 1,4-butanediol (BDO), and
- processing the obtained polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) with glass fibers, glass balls, lubricant and antioxidant in a twin screw extruder.
In the preferred embodiment of the invention, the production method of PBT/PET blend material comprises the process steps of,
- obtaining polybutylene terephthalate from PET copolymers,
- obtaining polyethylene terephthalate (PET) by polymerization of dimethyl terephthalate (DMT) and 1,4-butanediol (BDO), and
- processing polybutylene terephthalate (PBT) in a ratio of 15-70% and polyethylene terephthalate (PET) in a ratio of 15-70% with glass fibers in a ratio of 3-35%, glass balls in a ratio of 3-35%, lubricant in a ratio of 0.2-4% and antioxidant in a ratio of 0.05-3% in a twin screw extruder.
- obtaining polybutylene terephthalate from PET copolymers,
- obtaining polyethylene terephthalate (PET) by polymerization of dimethyl terephthalate (DMT) and 1,4-butanediol (BDO), and
- processing polybutylene terephthalate (PBT) in a ratio of 15-70% and polyethylene terephthalate (PET) in a ratio of 15-70% with glass fibers in a ratio of 3-35%, glass balls in a ratio of 3-35%, lubricant in a ratio of 0.2-4% and antioxidant in a ratio of 0.05-3% in a twin screw extruder.
Claims (15)
- A blend material comprising glass fiber reinforced polybutylene terephthalate (PBT), polyethylene terephthalate (PET), lubricant and antioxidant, characterized by comprising glass balls.
- Blend material according to claim 1, characterized by comprising glass fibers in a ratio of 3-35%.
- Blend material according to claim 1, characterized by comprising glass fibers with a diameter of 8-15 µm.
- Blend material according to claim 1, characterized by comprising surface modification compatible with polyester.
- Blend material according to claim 1, characterized by comprising polybutylene terephthalate (PBT) in a ratio of 15-70%.
- Blend material according to claim 5, characterized by comprising polybutylene terephthalate (PBT) having a viscosity of 0.85-0.96 dL/G.
- Blend material according to claim 1, characterized by comprising polyethylene terephthalate (PET) in a ratio of 15-70%.
- Blend material according to claim 7, characterized by comprising polyethylene terephthalate (PBT) having a viscosity of 0.710 ± 0.010 dL/G.
- Blend material according to claim 1, characterized by comprising glass balls in a ratio of 3-35%.
- Blend material according to claim 9, characterized by comprising glass balls with a diameter of 3-40 µm.
- Blend material according to claim 1, characterized by comprising lubricant in a ratio of 0.2-4%.
- Blend material according to claim 1, characterized by comprising antioxidant in a ratio of 0.05-3%.
- Blend material according to claim 12, characterized by the antioxidant being synergistic phenol/phosphite mixture with high phosphite content.
- Production method of the blend material according to claim 1, characterized by the process steps of:- obtaining polybutylene terephthalate from PET copolymers,- obtaining polyethylene terephthalate (PET) by polymerization of dimethyl terephthalate (DMT) and 1,4-butanediol (BDO), and- processing the obtained polybutylene terephthalate (PBT) and polyethylene terephthalate (PET) with glass fibers, glass balls, lubricant and antioxidant in a twin screw extruder.
- Production method of the blend material according to claim 1, characterized by the process steps of:- obtaining polybutylene terephthalate from PET copolymers,- obtaining polyethylene terephthalate (PET) by polymerization of dimethyl terephthalate (DMT) and 1,4-butanediol (BDO),- processing polybutylene terephthalate (PBT) in a ratio of 15-70% and polyethylene terephthalate (PET) in a ratio of 15-70% with glass fibers in a ratio of 3-35%, glass balls in a ratio of 3-35%, lubricant in a ratio of 0.2-4%, and antioxidant in a ratio of 0.05-3% in a twin screw extruder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TRA2017/12207 | 2017-08-16 | ||
| TR2017/12207A TR201712207A2 (en) | 2017-08-16 | 2017-08-16 | PBT / PET BLEND MATERIALS REINFORCED WITH GLASS FIBER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019034368A1 true WO2019034368A1 (en) | 2019-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2018/069745 WO2019034368A1 (en) | 2017-08-16 | 2018-07-20 | Glass fiber reinforced pbt/pet blend materials |
Country Status (2)
| Country | Link |
|---|---|
| TR (1) | TR201712207A2 (en) |
| WO (1) | WO2019034368A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073226A (en) * | 2019-12-18 | 2020-04-28 | 广州市聚赛龙工程塑料股份有限公司 | High-strength high-gloss low-warpage PBT (polybutylene terephthalate) composite material as well as preparation method and application thereof |
| CN115895201A (en) * | 2022-10-14 | 2023-04-04 | 中广核瑞胜发（厦门）新材料有限公司 | High-reflectivity PBT composition suitable for manufacturing reflection cup and preparation and application thereof |
| WO2023229132A1 (en) * | 2022-05-25 | 2023-11-30 | (주) 엘지화학 | Polyester resin composition, preparation method therefor, and molded article produced therefrom |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580632B (en) | 2009-06-12 | 2012-02-08 | 金发科技股份有限公司 | High-gloss high-performance fiber glass reinforced PBT material and preparation method thereof |
| CN104693695A (en) | 2013-12-05 | 2015-06-10 | 上海杰事杰新材料(集团)股份有限公司 | Lightweight denoising polyethylene terephthalate material and preparation method thereof |
| CN106380800A (en) * | 2016-10-08 | 2017-02-08 | 上海加略实业有限公司 | High heat-resistant spraying-free glass fiber reinforced PBT/PET alloy and preparation method thereof |
-
2017
- 2017-08-16 TR TR2017/12207A patent/TR201712207A2/en unknown
-
2018
- 2018-07-20 WO PCT/EP2018/069745 patent/WO2019034368A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580632B (en) | 2009-06-12 | 2012-02-08 | 金发科技股份有限公司 | High-gloss high-performance fiber glass reinforced PBT material and preparation method thereof |
| CN104693695A (en) | 2013-12-05 | 2015-06-10 | 上海杰事杰新材料(集团)股份有限公司 | Lightweight denoising polyethylene terephthalate material and preparation method thereof |
| CN106380800A (en) * | 2016-10-08 | 2017-02-08 | 上海加略实业有限公司 | High heat-resistant spraying-free glass fiber reinforced PBT/PET alloy and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111073226A (en) * | 2019-12-18 | 2020-04-28 | 广州市聚赛龙工程塑料股份有限公司 | High-strength high-gloss low-warpage PBT (polybutylene terephthalate) composite material as well as preparation method and application thereof |
| CN111073226B (en) * | 2019-12-18 | 2022-06-28 | 广州市聚赛龙工程塑料股份有限公司 | High-strength high-gloss low-warpage PBT (polybutylene terephthalate) composite material as well as preparation method and application thereof |
| WO2023229132A1 (en) * | 2022-05-25 | 2023-11-30 | (주) 엘지화학 | Polyester resin composition, preparation method therefor, and molded article produced therefrom |
| CN115895201A (en) * | 2022-10-14 | 2023-04-04 | 中广核瑞胜发（厦门）新材料有限公司 | High-reflectivity PBT composition suitable for manufacturing reflection cup and preparation and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TR201712207A2 (en) | 2019-03-21 |
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